variants or less commonly boart
: imperfectly crystallized diamond or diamond fragments used as an abrasive

Word History


probably from Dutch boort

First Known Use

1622, in the meaning defined above

Time Traveler
The first known use of bort was in 1622

Dictionary Entries Near bort

Cite this Entry

“Bort.” Dictionary, Merriam-Webster, Accessed 22 Feb. 2024.

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